Answer:
Can you please provide the elements?
Explanation:Attach a file or tyoe the names into the question
Organic matter is a variety of living and dead plant and animal material.
The answer is (4), (3) is merely a change in composition, thus not chemical but physical.
Answer: (4).
Answer:
41.51 g of CO
Explanation:
The balance chemical equation for given double displacement reaction is,
Fe₂O₃ + 3 CO → 2 Fe + 3 CO₂
Step 1: <u>Calculate moles of Fe₂O₃:</u>
Moles = Mass / M.Mass
Moles = 78.9 g / 159.68 g/mol
Moles = 0.494 moles
Step 2: <u>Calculate moles of CO:</u>
According to equation,
1 mole of Fe₂O₃ reacted with = 3 moles of CO
so,
0.494 moles of Fe₂O₃ will react with = X moles of CO
Solving for X,
X = 0.494 mol × 3 mol ÷ 1 mol
X = 1.482 moles of CO
Step 3: <u>Calculate Mass of CO as:</u>
Mass = Moles × M.Mass
Mass = 1.482 mol × 28.01 g/mol
Mass = 41.51 g of CO
Answer:
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